Overview
The Dana Spicer 2019746 is a front Dana 44 ring and pinion gear set with a 4.56 gear ratio. It fits the 2007–2018 Jeep Wrangler (JK) in two-door and four-door models, and it is a genuine replacement for the factory gears.
Dana Spicer says its ring and pinion gears are designed and tested to meet original equipment specifications. The company builds them with premium heat treatment, optimal tooth profiles and high-grade steel, and it says they are made to the latest designs and will meet or exceed the Dana standards that original equipment makers have relied on for more than a century.
Key features
- Front Dana 44 ring and pinion set
- 4.56 gear ratio
- Premium heat treatment processes
- Optimal tooth profiles
- High-grade steel for durability
- Designed and tested to original equipment specifications
Break-in and gear setup
A new ring and pinion set benefits from a careful break-in, since the gear teeth settle against each other during the first miles. Driving gently with light throttle and avoiding long high-load pulls helps the surfaces wear evenly. Setting backlash and tooth contact correctly before the axle returns to service is what keeps the set quiet and long-lived.
The 4.56 ratio raises engine speed at a given road speed, so a driver may notice more rpm on the highway and stronger pull off the line. Tire size changes that effect as well, and a taller tire can offset some of the change. Gear oil should suit the axle and any limited-slip unit, and it is worth checking the oil level after the first few trips for signs of leaks.
- Set backlash and tooth contact before the axle is closed
- Check the oil level after the first trips
- Re-torque fasteners after the break-in drives
Specifications
| Brand | Dana Spicer |
|---|---|
| Part number | 2019746 |
| Axle | Dana 44, front |
| Gear ratio | 4.56 |
| Heat treatment | Premium |
| Steel | High-grade |
Vehicle fitment
This set is for the 2007–2018 Jeep Wrangler (JK), in two-door and four-door models. Confirm your vehicle’s year, model and trim before ordering.
Only the JK is listed. Check the front axle type and the ratio before ordering.
Installation notes
A front ring and pinion should be set up by a professional, with backlash and tooth contact checked before the axle is returned to service. Expect a break-in period after a gear change.
What’s included
The ring and pinion gear set. Check the package contents against your installation before starting, including bearings and shims.
